Hydrocarbon incandescent lamp.



PATENTED SEPT. 15, 1908. P. B. GURRAN. HYDROGARBON INGANDESGENT LAMP.

APPLICATION FILED JULY 23. 1900.

N0 MODEL.

UNITED STATES Patented September 15, 1903.

PATENT OFFICE.

PHILIP B. OIIRRAN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO KITSON HYDROOARBON HEATING AND INOANDESOENT LIGHTING COMPANY, A CORPORATION OF WEST VIRGINIA.

HYDRQCARBON INCANDESCENT LAMP.

QPECIFICATION forming part of Letters Patent.No. 739,064, dated September 15, 1903.

Applicationfiled July 23, 1900- Serial No. 241.518. (N0 model.)

To all whom, itJTI/LLZ/ concern.-

Be it known that I, PHILIP B. CURRAN,'a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Hydrocarbon Incandescent Lamp, of which the following is a specification.

The invention relates to lamps using kerosene under pressure as fuel. The chief objection to this type of lamp is that heretofore it was unreliable, required almost'constant attention, and was not capable of satisfactory regulation.

The object of the present invention is to provide a simple, reliable, and efficient lamp for producing light by incandescence from the use of comparatively little kerosene or other heavy oil and of which the candle-power may be accurately regulated, as required, and which is economical in respect to the combustion of oil.

The invention consists in the improved hydrocarbon-burner and in the novel construction, combination, and arrangement of the parts thereof, as will be presently hereinafter set forth, and defined in the claims hereto appended.

The nature, characteristic features, and scope of the invention will be readily understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which- Figure 1 is'an elevation of a lamp constructed in accordance with my invention, the same being shown as attached to a portable tank or reservoir, though it is obvious that it is equally well adapted to be attached to any other means of fuel-supply; and Fig. 2 is a central vertical section of the burner drawn to a larger scale. of thejet,showing the aper-tured needle-guide.

Referring to the drawings and to the numerals of reference marked thereon, 1 denotes a tank or reservoir of any appropriate form provided with a plug 2 and with a central threaded opening to receive a pipe 3, which performs the function of a supply-pipe tothe burner. The pipe 3 is provided at its top with a threaded sleeve or cap 4, upon which is mounted a coupling 5, having a rectangu- Fig. 3 is an enlarged detail lar passageG, terminated by a threaded eX- tension or yoke 7. The latter carries a vaporizing-tube 8, which is threaded for the purpose and has its upper portion 10 of relatively greater thioknessthan its lower portion. The vaporizing-tube is terminated by a jet ll, which is formed of a threaded or otherwise movable member provided with inner concentric tube 12, having an upper annular flange 13, served with inwardly-inclined orifices 14.- The enlarged portion 10 of the vaporizingtube projects outwardly at its base, forming a baffle-plate 15. guide for the needle 16, which extends downwardly through the vaporizing-tube and yoke The tube 12 constitutes a 7 and is sustained by a rack 17, having a linr ited movement in the passage 6.

The bore 18 of yoke '7 is of slightly greater diameter than the needle, and the under side of the yoke has its walls inclined or beveled, as at 19, constituting a valve-seat for the valve portion 20 of the rack 17. When the rack 17 is in its normal position, the position indicated in the drawings, the point of the needle 16 will protrude through the jet-ori fice. Hence the latter can never become clogged. Another and similar'rack 21 is seen in the lower half of the passage 6 and has its base made round, square, or other suitable shape to constitute a valve 22'for the supplytube 3, which it normally closes.

A pinion 23 is mounted to rotate in the coup ling 5 and is operated by a stem 24, extending out through the movable bushing 25 and furnished with a milled head 26. The pinion 23 is in mesh with the rack-surface of each of valves 20 and 22, so that when the pinion is rotated toward the right the respective valves will be lowered and raised in respect to their seats and the fuel will have an un obstructed passage to the jet, the downward movement of the needle operating to clean the jet-orifice. v

The vaporizing-tube 8 is'supplied at its lower half with the alcohol cup or heater 27, containing cotton'or other absorbent mate rial 28. v i

The mixing-tube 29 has its lower portion somewhatpnlarged and provided with an outwardly and upwardly turned flange 30, forming an annular chamber or reservoir 31 of the Fig. 1. supply air to the auxiliary heater, while its general shape shown. Said tube is further provided contiguous the jet with a series of openings 32, from each of which extends an air channel or tube 33, which tubes pass through suitable apertures in the walls of chamber 31 and extend downwardly and have theirlowerends flanged, as at 3% 35, the flange 34 extending downwardly and having its lowest portion alined with the top of the alcoholcup 27, which it surrounds. The flange 31 has a lateral extension 36, which serves to support the alcohol-supply tube 37, having the flared outlet or funnel 38. The flanged base of the mixing-tube 29 is provided with apertures 40 and with a downwardly-projecting crown 41, having a series of verticallydisposed channels or passages 42, separated from one another. These channels are each provided subjacent the apertures 40 with a wire-gauze 43, and thus form a cluster of Bunsen burners, which constitute the auxiliary heater. The crown 41 is provided with a cowl 44, extending to below the baffle-plate 15 and served with openings 45, as clearly shown in The openings of the cowl or hood 44 skirt acts to retain heat uponihe generator. The mixing-tube 29 has its upper-portion inclosed by a tubular member or baffle 46, supported by legs or standards 47, bent to the contour of the laterally-extended portion of the reservoir 31. Said member 46 is provided at its top with perforations 48 and forms an annular space or passage 19 between it and the mixing-tube 29.

The burner-tube 50 has its base bent to constitute the top wall of the reservoir 31 and forms an annular space or passage 51. A mantle-support 52 is provided to one side of the tube 50 and served with any suitable holding meansas, for instance, the set-screw 53. It will thus be observed that the annular spaces 49 and 51 are in eflect independent or separated passages, which are defined by the bafiie-tube 46, and connect the reservoir 31 with the mixing-tub and burner, respectively. The stored-up fuel in the reservoir 31 cannot return to the mixing-tube on account of the head or pressure of gaseous fuel in the latter, and must therefore serve to feed the auxiliary heater or escape to the burner via the passage 51.

In operation the vaporizing-tube is supplied with kerosene from anysuitablesource in the present instance from the portable tank 1. Heat is then applied to the vaporizing-tube by burning alcohol in the cup 27, as indicated in the drawings. The stem 24 is then turned to the right, whereby valve 22 will be lifted from its seat and valve 20 lowered, the needle 16 being simultaneously withdrawn from the jet-orifice. The kerosene as it rises in the tube 8 is vaporized-and escapes through the jet-orifice and mixes freely with air entering through the channels 33. The baffle-tube 46 serves to partially interrupt the stream of vaporous fuel issuing from the mixing-chainber, and While portions of it will escape through the perforations 48 and burn at the mantle, as usual, other portions will be deflected backward through the passage 49. Here it is again divided, portions returning to the burner through the passage 51 and the remainder filling the reservoir 31 and feeding the Bunsen burners 42, which are ignited by the flame from the alcohol-cup. The reservoir 31 is highly important as a reserve fuel-supply for the burner in the event the main supply is suddenly interrupted from any cause.

It will be evident that I have produced a superior burner for the purpose stated, composed of simple parts and simple in operation and which will afford an economy both as regards manufacture and use.

It will be obvious to those skilled in the art to which the invention appertains that modifications may be made in detail without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth, and illustrated in the accompanying drawings; but,

Having thus described the nature and 0bjeets of my invention and the manner in which the same is to be performed, what I claim as new, and desire to secure by Letters Patent, is-- 1. A burner provided with a vaporizingtube havingits upper walls of increased thickness, a jet fitted in the upper end of said tube and havinga needle-guide provided with converging orifices and a needle passed through said vaporizing-tube and having its lower end terminating in a rack constituting a valve for the vaporizing-tube, a coupling havinga central here or passage in which said rack is adapted to be reciprocated, a similar rack in the lower end of said bore or passage constituting a valve for the fuel-supply, and apinion engaging said racks for simultaneous operation, substantially as described.

2. A burnerof the character described, comprising the combination of a valve-casing provided with an inlet and an outlet, with a generator attached to the upper end of said casing and having an outlet for vapor at its upper end, a needle-valve in said generator extending into said casing, a valve in said casing controlling the inlet, means for operating said valves, concentric nested shells alined with the vapor-outlet and constituting, respectively, a mixing-tube and burner-head, air-tubes extending downward from the mixing-tube and connected together by an annulus or ring, a startingcup below said ring, and a filling device or funnel carried by said ring and arranged to discharge into said cup, substantially as described.

PHILIP I CURRAN.

\Vit-nesses:

A. B. SToUcHToN, FRANKLIN T. KALAS. 

